Sterculia gum CAS NO.9000-36-6

Gum Karaya is a complex acetylated polysaccharide consisting mainly of D-galacturonic acid, D-galactose and L-rhamnose. Its powder is light gray to pi…

Gum Karaya is a complex acetylated polysaccharide consisting mainly of D-galacturonic acid, D-galactose and L-rhamnose. Its powder is light gray to pinkish gray and has a slight acetic taste and odour. Unlike other water soluble gums, it does not dissolve in water but absorbs it to form a viscous colloidal solution. Viscosity stability depends on time of harvest, climate during harvest, storage conditions including temperature/humidity and may decrease after storage over 6 months. Low concentrations in cold solutions are more viscous rather than in hot solutions. High concentrations require cooking of the gum to aid in solubility which could reduce the viscosity.